The 52's trigger is fine as it is. No tweaking required.
Many of them prefer brass trimmed to minimum length and bullets seated flush with the case mouth. You may need to experiment with the crimp a little, but generally just a light roll crimp is all that's needed. My 52-1 also has a preference for W231.
They can be expensive and hard to find. But, if you get one, you'll never regret it.